Hi Patrick,
The SetupTypeDlg is a mandatory dialog when using the Spring theme. This theme is HTML based thus it cannot be edited directly using the dialog editor in the Dialogs page.
If you are looking to customize this theme, here are a couple of related articles to help:
http://www.advancedinstaller.com/user-g ... theme.html
http://www.advancedinstaller.com/user-g ... theme.html
To remove the "Custom" button you will have to backup and edit the "setuptype.html" resource from Advanced Installer installation directory:
Another simpler solution would be to try using another theme.
All the best,
Mihai
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